In the early 1990s, biotechnology companies were preparing to market the first food products derived from GM crops. This provided a challenge to legislators. There were no precedents to guide them as to how to approve or ban novel food products. The methods used to approve pharmaceuticals, summarised above (Section 3.1), did not seem to transfer easily to whole food products.

Meet the Journalist: Roger Thurow 1,000 Days: In this Meet the Journalist video, Roger Thurow explores this new innovation of biofortification and how mothers are enlisting the crops they grow in the fight against malnutrition.Author(s): No creator set

The rates of muscle contraction and relaxation, and the maximum force generated, are complex enzymatic processes that determine speed of swimming. Ian Johnston of St Andrews University (Johnston, 1989) has compared the maximum tension of muscle fibres isolated from several species of antarctic, temperate-zone and tropical fish (Figure 25).

Recitation leader Prof. Liang Fu, substituting for Prof. Adams, goes over how to qualitatively analyze the energy eigenstates given a general potential and begins the quantitative analysis of the energy eigenstates of a finite well.

In recent years the aerospace R&D community has witnessed a significant surge in research activities connected to morphing aerospace structures. This seminar describes the results from modelling and testing prototypes of wingboxes and satellite antenna reflectors made with cellular configurations. The cellular structures used (honeycombs, truss-cores, lattices) show negative and zero Poisson’s ratio behaviours, and are made from polimeric, shape memory alloy and embedded piezoelectr

The formation of synaptic connections is an essential property of nervous system development. Synapses are formed between neurons and also with targets that are not part of the nervous system, e.g. muscle. Axon terminals, under the direction of a variety of extracellular cues, grow towards particular targets. Once they arrive at the target, they stop growing and the growth cone changes to form a synapse. As with axon growth, the formation of the synapse is dependent on an interaction between

Beginning Cursive Handwriting Video for cursive handwriting practice. It shows how to join letters in writing . This video does not have sound. Writing is shown on a whiteboard. (04:23)Author(s): No creator set

Information about stimulus intensity is encoded in two ways: the firing rates of neurons and the number of active neurons.

Intensity is assumed to be encoded by an increase in discharge rate of action potentials within the auditory system. As the stimulus gets more intense, the basilar membrane vibrates at a greater amplitude causing the membrane potential of activated hair cells to be more depolarised and this causes the nerve fibres that synapse onto the hair cells to fire at a greate

Production of large quantities of coal in the UK during the 19th and 20th centuries led to the progressive depletion of reserves. In 2005 underground mining was limited to the Carboniferous coalfields of Yorkshire and the East Midlands, with only one underground mine operating in South Wales. However, surface mining sites still work coal in most of the coalfields (Author(s):

Scattering calculations using wave packets are so laborious that they are generally done numerically, using a computer. However, in many cases, scattering phenomena can be adequately treated using a procedure based on stationary states. This approach can give valuable insight into the scattering process without the need for computer simulations.

Session 3 introduces the stationary-state approach to scattering. The discussion is mainly confined to one dimension, so a stationary-state sol

Look at the Moon even with the unaided eye, and you will see that it has dark patches on a paler background (Figure 2). This simple observation picks out the two distinct types of crust on the Moon. The paler areas are the lunar highlands, and the darker areas are the lunar 'seas' or maria (singular: mare). Both the highlands an